WorldFish is an international, nonprofit research organization that harnesses the potential of fisheries and aquaculture to reduce hunger and poverty. Our publications database contains WorldFish publications and references to WorldFish research published in refereed journals and periodicals.

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The maximum sustainable yield of demersal fishery resources in the Gulf of Thailand to a depth of 50 m is estimated to be 750,000 tonnes. On this basis the Gulf has been overfished since 1973. There were over 4,000 trawlers registered in the Gulf in 1972; over 10,000 in 1982. The total catch of food fish has increased only slightly since 1963, most increases being of trash fish. However, the trash fish component includes increasing numbers of juvenile food fish.

Fishing installations consisting of branches of trees, bushes or other soft vegetation stuck into the muddy bottoms of lagoons, lakes or rivers, are common throughout the world. Collectively, these may be termed "brush parks" and are found in many parts of west Africa, Madagascar, Sri Lanka, Bangladesh, Cambodia and China, as well as in Ecuador and Mexico.

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Fisheries

In the management of water, especially freshwater lakes, the actions of only a few people disturbing the environment can have considerable impact on aquatic ecology. Even small changes in the abundance of the different organisms can be symptoms of serious problems which can worsen if the causes are not found and removed. Finding the cause frequently involves an investigation by a trained biologist but depends first on someone recognizing that the problem exists.

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